issue 3802 Rem new features line on maintenance page

http://code.google.com/p/otwarchive/issues/detail?id=3802


http://test.archiveofourown.org/nomaintenance.html

The page says "We'll be back soon with new features!" which isn't always true, since we use it for more than just deploys. Let's get rid of that line.

Got rid of that line